/*-- $Id$ -- ============================================================================ The Apache Software License, Version 1.1 ============================================================================ Copyright (C) 1999 The Apache Software Foundation. All rights reserved. Redistribution and use in source and binary forms, with or without modifica- tion, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The end-user documentation included with the redistribution, if any, must include the following acknowledgment: "This product includes software developed by the Apache Software Foundation (http://www.apache.org/)." Alternately, this acknowledgment may appear in the software itself, if and wherever such third-party acknowledgments normally appear. 4. The names "Fop" and "Apache Software Foundation" must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact apache@apache.org. 5. Products derived from this software may not be called "Apache", nor may "Apache" appear in their name, without prior written permission of the Apache Software Foundation. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU- DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. This software consists of voluntary contributions made by many individuals on behalf of the Apache Software Foundation and was originally created by James Tauber . For more information on the Apache Software Foundation, please see . */ package org.apache.fop.dom.svg; import org.apache.fop.fo.Property; import java.util.*; import java.text.*; import org.w3c.dom.svg.*; /** * SVG Angle. * * @author Keiron Liddle * modified Nov 14,2000 Mike Crowe , Fop internal * representation of angles is in degrees, added convert before doing any trig * function */ public class SVGAngleImpl implements SVGAngle { float value = 0; short unitType = SVG_ANGLETYPE_UNKNOWN; public SVGAngleImpl() { } public short getUnitType() { return unitType; } public float getValue() { return value; } public void setValue(float value) { this.value = value; } public float getValueInSpecifiedUnits() { switch (unitType) { case SVG_ANGLETYPE_UNKNOWN: throw new SVGExceptionImpl( SVGException.SVG_WRONG_TYPE_ERR, "unknown unit type"); // break; case SVG_ANGLETYPE_UNSPECIFIED: throw new SVGExceptionImpl( SVGException.SVG_WRONG_TYPE_ERR, "unknown unit type"); // break; case SVG_ANGLETYPE_DEG: break; case SVG_ANGLETYPE_RAD: break; case SVG_ANGLETYPE_GRAD: break; } return 0; } public void setValueInSpecifiedUnits(float valueInSpecifiedUnits) { switch (unitType) { case SVG_ANGLETYPE_UNKNOWN: throw new SVGExceptionImpl( SVGException.SVG_WRONG_TYPE_ERR, "unknown unit type"); // break; case SVG_ANGLETYPE_UNSPECIFIED: throw new SVGExceptionImpl( SVGException.SVG_WRONG_TYPE_ERR, "unknown unit type"); // break; case SVG_ANGLETYPE_DEG: break; case SVG_ANGLETYPE_RAD: break; case SVG_ANGLETYPE_GRAD: break; } } public String getValueAsString() { NumberFormat nf = NumberFormat.getInstance(); return nf.format(value); } /** *The following is from CR-SVG-20000802 4.1 Basic Data Types; * : An angle value is a optionally followed * immediately with an angle unit identifier. Angle unit identifiers are: * deg: degrees m * grad: grads m * rad: radians m * For properties defined in [CSS2], an angle unit identifier must be * provided. For SVG-specific attributes and properties, the angle unit * identifier is optional. If not provided, the angle value is assumed to be * in degrees. */ public void setValueAsString(String valueAsString) { NumberFormat nf = NumberFormat.getInstance(); try { value = nf.parse(valueAsString).floatValue(); if (valueAsString.indexOf("grad") != -1) { value = (float)(value * 360.0 / 400.0); } else if (valueAsString.indexOf("rad") != -1) { value = (float)(value * 180.0 / Math.PI); } } catch (ParseException pe) { value = 0; } } public float getAnimatedValue() { return 0; } public void newValueSpecifiedUnits (short unitType, float valueInSpecifiedUnits) throws SVGException { switch (unitType) { case SVG_ANGLETYPE_UNKNOWN: throw new SVGExceptionImpl( SVGException.SVG_WRONG_TYPE_ERR, "unknown unit type"); // break; case SVG_ANGLETYPE_UNSPECIFIED: throw new SVGExceptionImpl( SVGException.SVG_WRONG_TYPE_ERR, "unknown unit type"); // break; case SVG_ANGLETYPE_DEG: value = (float)(valueInSpecifiedUnits * Math.PI / 90.0); break; case SVG_ANGLETYPE_RAD: value = valueInSpecifiedUnits; break; case SVG_ANGLETYPE_GRAD: value = (float)(valueInSpecifiedUnits * Math.PI / 90.0); break; } this.unitType = unitType; } public void convertToSpecifiedUnits (short unitType) throws SVGException { switch (unitType) { case SVG_ANGLETYPE_UNKNOWN: throw new SVGExceptionImpl( SVGException.SVG_WRONG_TYPE_ERR, "unknown unit type"); // break; case SVG_ANGLETYPE_UNSPECIFIED: throw new SVGExceptionImpl( SVGException.SVG_WRONG_TYPE_ERR, "unknown unit type"); // break; case SVG_ANGLETYPE_DEG: break; case SVG_ANGLETYPE_RAD: break; case SVG_ANGLETYPE_GRAD: break; } this.unitType = unitType; } }